45 terms

Stem and Leaf Anatomy Vocabulary

Identify different parts of leaves, vein patterns, tips, blade shapes, simple vs. compound, bases, margins, and leaf arrangements on twig
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Terms in this set (...)

vein
Veins move water , minerals and nutrients in and out of the leaf
margin
the outer edge of the leaf blade
blade
a large flat structure that is designed to capture the greatest amount of light
petiole
the leaf stem
simple leaf
Consists of a single leaf blade and petiole
compound leaves
are made of a petiole and two or more leaflets
smooth/entire margin
a smooth edge to a leaf
Serrated margin
A leaf margin with edges like tiny jagged teeth
lobed margin
A leaf that has deep indentations around the edge, creating lobes
alternate leaves
Leaves are alternated or staggered along the stem
opposite leaves
when two leaves are directly across from each other
whorled leaves
when leaves arise from the same point on the stem
Terminal bud
Axillary bud
an embryonic shoot located in the axil of a leaf.
Phloem
Moves sugar and glucose from the leaves down through the plant
Xylem
Moves nutrients up from the roots
Stems
Structures which supports buds and leaves and conduct nutrients and water to all parts of the plant
Whats the function of leaves
To do photosynthesis
The expanded thin structure on either side of the midrib
Blade
The stalk that supports the leaf blade
Petiole
Epidermis
The top and bottom layer of thickened cells which protect the rest of the leaves
Guard cells
Guards the interior of the leaf and regulate the passage of water, oxygen, and carbon dioxide
Petiole
Leaf axil
Midrib
the main vein of a leaf
Apex
Stem
Stomata
Openings that allow for gas exchange
apical meristem
actively growing tip found inside a terminal or lateral bud
bud scale
small protective structure that can be seen on the outside of a bud
bud scale scar
area on the stem that shows the location of last year's bud
bulb
specialized stem made of a short, flat stem with many fleshy leaves attached
cambium
area on the inside of the stem where new xylem and phloem are made
corm
a bulb-shaped specialized stem that is made of solid stem with no leaves
internode
area on a stem that is between two leaves or buds
lateral bud
a bud that is found on the side of the branch in conjunction with a leaf
leaf scar
a mark on the stem where the leaf used to be
lenticel
A small raised area in the bark of stems and roots that allows gas exchange
node
location on the stem where leaves and buds are attached
phloem
tube-shaped cells inside of a stem, which carry food down to the leaves
rhizome
specialized stem that is thick and runs horizontally beneath the soil
stolon
specialized stem that is usually horizontal and above soil, often called runners
terminal bud
a bud that is found at the tip of a branch
tuber
specialized stem that is swollen with stored food
xylem
tube-shaped cells that carry water and minerals up from the root

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